Home / 100,887.24-139,219.01-57,864.50

Finding the Fourth Proportional to 100,887.24, 139,219.01 and 57,864.50

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Solution

The fourth proportional to 100,887.24, 139,219.01 and 57,864.50 is: 79,849.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,887.24 : 139,219.01 = 57,864.50 : x
  2. Step 2: Convert to fraction form
    100,887.24/139,219.01 = 57,864.50/x
  3. Step 3: Cross multiply
    100,887.24x = 139,219.01 × 57,864.50
  4. Step 4: Simplify right side
    100,887.24x = 8,055,838,404.15
  5. Step 5: Solve for x
    x = 8,055,838,404.15/100,887.24
  6. Step 6: Final answer
    x = 79,849.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.